Rotten Flesh to Leather Mod for Minecraft 1.7.10/1.7.2

There are Hardcore version of Rotten Flesh to Leather Mod. Instead of smelting Rotten Flesh into Leather, you need to “purify” the Rotten Flesh first. Do this by putting Rotten Flesh, Sugar, and Bonemeal anywhere on the grid to make regular Flesh. Now only then you can make it into Leather by smelting it. Just simply throw in Rotten Flesh in the top slot, and alakazam!